As noted in [0], SeaBIOS (QEMU default) makes a mess of the terminal, qboot does not.
It turns out this is actually useful with kunit.py, since the user is exposed to this issue if they set --raw_output=all. qboot is also faster than SeaBIOS, but it's is marginal for this usecase. [0] https://lore.kernel.org/all/ca+i-1c0wyb-gz8mwh3wsvpbk-lf-uo+njvbasjpe1wxduro...@mail.gmail.com/ Both SeaBIOS and qboot are x86-specific. Signed-off-by: Brendan Jackman <jackm...@google.com> --- tools/testing/kunit/qemu_configs/x86_64.py | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/tools/testing/kunit/qemu_configs/x86_64.py b/tools/testing/kunit/qemu_configs/x86_64.py index dc794907686304b325dbe180149169dd79bcd44f..4a6bf4e048f5b05c889e3b9b03046f14cc9b0bcc 100644 --- a/tools/testing/kunit/qemu_configs/x86_64.py +++ b/tools/testing/kunit/qemu_configs/x86_64.py @@ -7,4 +7,6 @@ CONFIG_SERIAL_8250_CONSOLE=y''', qemu_arch='x86_64', kernel_path='arch/x86/boot/bzImage', kernel_command_line='console=ttyS0', - extra_qemu_params=[]) + # qboot is faster than SeaBIOS and doesn't mess up + # the terminal. + extra_qemu_params=['-bios', 'qboot.rom']) --- base-commit: 8ea24baaaa869adeb39c6b9ce7542657a7251b56 change-id: 20250124-kunit-qboot-5201945f7e86 Best regards, -- Brendan Jackman <jackm...@google.com>
